Improvement in sash-holders



PATENT CDEEICEo l JOSEPH TAYLOR GRAW, OF JERSEY GITY, NEW JERSEY.

IMPROVEMENT IN SASH-HOLDERS.

Specili cation forming part of Letters Patent No. 146,434, dated January13, 18731; application filed l December 15, 18I3.

To all 'whom it may concern:

Be it known that I, JOSEPH T. GRAW, of Jersey Gity, in the county ofHudson and State of New Jersey, have invented anew and ImprovedWindow-Sash Lock and Holder; and I do hereby declare that the followingis a full, clear, and exact description of the same,

` reference being had to the accompanying drawingformingpart of thisspeciiieation, in which- Figure l. isa Vertical sectional elevation of awindow frame and sash, Fig. 2, a plan ot' my improved ,sash-fastener.

The invention relates to means whereby the upper and lower sash of awindow may be a1- ternately held by the saine fastener, and it consistsin a double cam, with arms of such relative length, and so constructed,as to strike s or impinge, alternately on either sash as hereinafterdescribed.

A represent-s the window-frame, and B G the upper and lower sashes. Drepresents my improved fastener, which is pivoted, through a hole, d, totheinside of frame. The curved surl faces bc are at such relativedistances from .the hole d that a certain portion thereof may be broughtinto frictional contact, the one with sash B, and the other with sash G.

As different portions ofthe curved surfaces b c are unequally distantfrom the hole d, or center of motion, the friction may be made greateror less. Thus it will be seen that either sash may be held at anydesired elevation, each end of the fastener alternately serving as ahandle and a sash-holder.

Having thus described my invention, what I claim as new, and desire tosecure by Letters y The combination, with sashes B G, ot' the idouble-cam sash-fastener D, pivoted, at d,

to inside of window-frame, and having arms ot different length, withcam-faces b c, as and for the purpose describedc JOSEPH TAYLOR GRAW.

`VVitnessesz SoLoN G. KEMON, CHAs. A. PETTIT.

